Finding the Fourth Proportional to 915,392.21, 1,263,315.76 and 507,621.74
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Solution
The fourth proportional to 915,392.21, 1,263,315.76 and 507,621.74 is: 700,559.32
Step by Step Solution
- Step 1: Write the proportion equation
915,392.21 : 1,263,315.76 = 507,621.74 : x - Step 2: Convert to fraction form
915,392.21/1,263,315.76 = 507,621.74/x - Step 3: Cross multiply
915,392.21x = 1,263,315.76 × 507,621.74 - Step 4: Simplify right side
915,392.21x = 641,286,536,674.99 - Step 5: Solve for x
x = 641,286,536,674.99/915,392.21 - Step 6: Final answer
x = 700,559.32
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.